A tool for dismounting and mounting an end plate of a reverse osmosis membrane pressure vessel

Abstract

The utility model relates to a kind of reverse osmosis membrane pressure vessel end plate dismounting tools, it includes connecting assembly, push-pull assembly and detection assembly;Push-pull assembly is connected with connecting assembly and it has a push-pull end, and push-pull end is detachably connected with end plate;Detection assembly is connected with push-pull end, and it has detection end, and detection end is connected with push-pull assembly, when detection assembly detects groove, push-pull assembly stops action;When installing end plate, connecting assembly is installed to the shell of reverse osmosis membrane pressure vessel, the push-pull end of push-pull assembly is connected with end plate, for pushing end plate to the inside of shell, until detection assembly detects groove, push-pull assembly stops action, at this time, the installation depth of end plate just makes groove exposed, to facilitate the installation of stop block, install stop block and the installation process of end plate is completed;When dismounting end plate, after connecting assembly is installed, push-pull end is connected with end plate, and end plate is pulled to the outside of shell, to complete the dismounting process of end plate.

Description

Technical Field

[0001] This utility model relates to the field of water treatment equipment installation and disassembly technology, and in particular to a tool for disassembling and assembling the end plate of a reverse osmosis membrane pressure vessel. Background Technology

[0002] The structure of a reverse osmosis membrane pressure vessel is as follows: Figure 1 As shown, it includes a housing and an end plate. The end plate is connected to the inner wall of the housing via a sealing ring. The outer wall of the end plate is tightly fitted to the inner wall of the housing. Therefore, special tools are usually required to disassemble and assemble the end plate.

[0003] For example, the utility model patent with application number CN202220926822.2 proposes a disassembly and assembly device for membrane module disassembly and installation. This device includes a lower clamp, a support frame, an operating rod, a pressure plate, and connecting parts. The lower clamp is used to clamp the membrane shell and limit the disassembly and assembly device. It includes two clamps with arc-shaped limiting surfaces, one end of which is hinged together. One clamp has a quick-locking rod hinged to its open end, and the other clamp has a locking slot. The quick-locking rod is positioned within the locking slot to engage the two clamps. Locking; the support frame is used to connect the lower clamp and the operating rod. The support frame includes at least two support rods and a support seat fixed to the upper part of the support rods for connecting the operating rod. The support rods are detachably installed on the lower clamp. The operating rod is screwed onto the support seat and can move. The bottom of the operating rod has a first connecting part and a second connecting part. The connector is detachably installed on the first connecting part of the operating rod. The pressure plate is detachably installed on the second connecting part of the operating rod. The threaded section at the lower part of the connector is connected to the end plate and used to pull the end plate out of the diaphragm housing. The pressure plate is used to push the end plate into the designated position of the diaphragm housing.

[0004] To prevent the end plate from loosening, such as Figure 2 As shown, a groove is usually made on the inner wall of the outer shell, and a stop is set on the end plate. The stop is embedded in the groove, thereby locking the end plate and improving the stability of the connection between the end plate and the outer shell.

[0005] However, it is difficult to know and control the depth to which the end plate is pushed into the housing, and the position of the stop relative to the groove needs to be adjusted many times afterward, making the installation process of the stop extremely inconvenient. Utility Model Content

[0006] In view of this, it is necessary to provide a tool for disassembling and assembling the end plate of a reverse osmosis membrane pressure vessel to solve the problem that it is difficult to know and control the depth of the end plate being pushed into the shell, and that the position of the stop block relative to the groove needs to be adjusted multiple times afterward, making the installation process of the stop block extremely inconvenient.

[0007] This utility model provides a tool for disassembling and assembling the end plate of a reverse osmosis membrane pressure vessel, including a connecting component, a push-pull component, and a detection component. The connecting component is used for detachable connection with the outer shell of the reverse osmosis membrane pressure vessel. The push-pull component is connected to the connecting component and has a push-pull end, which is detachably connected to the end plate and is used to push the end plate into the interior of the outer shell or connect the end plate and pull the end plate to the exterior of the outer shell. The detection component is connected to the push-pull end and has a detection end for detecting a groove on the inner wall of the outer shell. The detection end is connected to the push-pull component, and when the detection component detects the groove, the push-pull component stops operating.

[0008] Furthermore, the detection component includes an abutment block, a spring, and a switch. One side of the abutment block is connected to the switch via the spring, and the other side of the abutment block slides against or is engaged in a groove with the inner wall of the housing. When the abutment block abuts against the inner wall of the housing, the spring is in a first compressed state and the switch is in a first state. When the abutment block is engaged in the groove, the spring is in a second compressed state or a natural state and the switch is in a second state. The switch is fixedly connected to the push-pull end and electrically connected to the push-pull assembly. When the switch is in the first state, the push-pull assembly is energized, and when the switch is in the second state, the push-pull assembly is de-energized.

[0009] Furthermore, the detection component includes an infrared rangefinder and a probe measuring switch mounted on the push-pull end. The infrared rangefinder is electrically connected to the push-pull component via the probe measuring switch. The infrared rangefinder is used to detect its distance to the inner wall of the housing. When the infrared rangefinder detects the inner wall of the housing, the probe measuring switch is in a first state, and the push-pull component is in a powered-on state. When the infrared rangefinder detects the groove, the switch is in a second state, and the push-pull component is in a powered-off state.

[0010] Furthermore, the push-pull assembly includes a telescopic rod, a push-pull plate, and a threaded rotating rod. The telescopic rod is fixedly connected to the connecting assembly. The telescopic rod has a telescopic end facing the opening of the outer casing. The push-pull plate is fixedly connected to the telescopic rod. The side of the push-pull plate away from the telescopic rod has an annular abutment surface. One end of the threaded rotating rod is connected to the telescopic end of the telescopic rod. The outer wall of the other end of the threaded rotating rod has an external thread that engages with the connecting thread on the end plate. The distance from the other end of the threaded rotating rod to the telescopic end is less than the distance from the annular abutment surface to the telescopic end. The detection assembly is attached to the annular abutment surface and fixedly connected to the outer wall of the push-pull plate. The telescopic rod is electrically connected to the detection assembly.

[0011] Furthermore, the threaded rotating rod is rotatably connected to the telescopic end of the telescopic rod.

[0012] Furthermore, the outer wall of the threaded rod near the telescopic end is formed with an external thread, which is threadedly connected to the internal thread on the telescopic end of the telescopic rod.

[0013] Furthermore, the push-pull assembly also includes an adjusting nut, which is fixedly connected to the middle part of the threaded rotating rod.

[0014] Furthermore, the connecting assembly includes a retaining ring, a retaining ring, and multiple pull rods. One side of the retaining ring has an annular groove for engaging with the outer edge of the opening end of the housing. The retaining ring is detachably connected to the outer wall of the housing. Both ends of the multiple pull rods are respectively connected to the retaining ring and the retaining ring.

[0015] Furthermore, the retaining ring includes two half-rings and two connecting screws. One end of each of the two connecting screws is rotatably connected to both ends of one of the half-rings, and the other end of each of the two connecting screws is threadedly connected to threaded holes opened on both ends of the other half-ring. A retaining gap is formed between the two half-rings for abutting against the annular inclined surface of the outer shell.

[0016] Furthermore, it also includes a plurality of adjusting screws corresponding one-to-one with the plurality of pull rods, one end of each of the plurality of adjusting screws being rotatably connected to the retaining ring, and the other end of each of the plurality of adjusting screws being threadedly connected to threaded holes opened on the plurality of pull rods.

[0017] Compared with existing technologies, when installing the end plate, the connecting assembly is installed onto the outer shell of the reverse osmosis membrane pressure vessel. The push-pull end of the push-pull assembly is connected to the end plate and is used to push the end plate into the interior of the shell until the detection assembly detects the groove. At this time, the installation depth of the end plate is just enough to expose the groove, so as to facilitate the installation of the stop block. Installing the stop block completes the end plate installation process. When disassembling the end plate, after the connecting assembly is installed, the push-pull end is connected to the end plate and the end plate is pulled to the outside of the shell, thus completing the end plate disassembly process. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a reverse osmosis membrane pressure vessel; Figure 2 for Figure 1 Enlarged diagram of part A in the middle Figure 3 This is a schematic diagram of the overall structure of the reverse osmosis membrane pressure vessel end plate disassembly and assembly tool provided in this embodiment of the utility model; Figure 4 for Figure 3 A schematic diagram of the structure of the detection component; Figure 5for Figure 3 Schematic diagram of the central ring structure; Figure 6 for Figure 3 Enlarged schematic diagram of section B. Detailed Implementation

[0019] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings, which form part of this application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not intended to limit the scope of the present invention.

[0020] like Figure 1-2 As shown, the reverse osmosis membrane pressure vessel M includes a shell M1 and an end plate M2. The end plate M2 is fixedly installed inside the shell M1, and the installation depth of the end plate M2 should be such that the groove M11 opened on the inner wall of the shell M1 is just exposed to facilitate the installation of the stop block M3. When installing the end plate M2, it is necessary to control the installation depth of the end plate M2. Therefore, a tool for disassembling and assembling the end plate M2 of the reverse osmosis membrane pressure vessel M is proposed.

[0021] like Figure 3 As shown in the figure, an embodiment of the present invention provides a tool for disassembling and assembling the end plate M2 of a reverse osmosis membrane pressure vessel M, including a connecting component 100, a push-pull component 200, and a detection component 300. The connecting component 100 is used to detachably connect to the outer shell M1 of the reverse osmosis membrane pressure vessel M. The push-pull component 200 is connected to the connecting component 100 and has a push-pull end, which is detachably connected to the end plate M2. It is used to push the end plate M2 into the interior of the outer shell M1 or to connect the end plate M2 and pull the end plate M2 to the exterior of the outer shell M1. The detection component 300 is connected to the push-pull end and has a detection end for detecting the groove M11 on the inner wall of the outer shell M1. The detection end is connected to the push-pull component 200. When the detection component 300 detects the groove M11, the push-pull component 200 stops operating.

[0022] During implementation, when installing end plate M2, the connecting assembly 100 is installed onto the outer shell M1 of the reverse osmosis membrane pressure vessel M. The push-pull end of the push-pull assembly 200 is connected to end plate M2 to push end plate M2 into the interior of the outer shell M1 until the detection assembly 300 detects the groove M11. At this time, the installation depth of end plate M2 is just enough to expose groove M11, so as to facilitate the installation of stop block M3. Installing stop block M3 completes the installation process of end plate M2. When disassembling end plate M2, after the connecting assembly 100 is installed, the push-pull end is connected to end plate M2, and end plate M2 is pulled to the outside of the outer shell M1, thereby completing the disassembly process of end plate M2.

[0023] In this embodiment, the connecting component 100 is used to connect the outer shell M1 of the reverse osmosis membrane pressure vessel M so as to fix the push-pull component 200 on the outer shell M1 and make it face the opening of the outer shell M1. The connecting component 100 is detachably connected to the outer shell M1 of the reverse osmosis membrane pressure vessel M.

[0024] In one embodiment, the connecting assembly 100 includes a retaining ring 110, a retaining ring 120, and a plurality of pull rods 130. The retaining ring 110 has an annular groove on one side for engaging with the outer edge of the opening end of the housing M1. The retaining ring 120 is detachably connected to the outer wall of the housing M1. Both ends of the plurality of pull rods 130 are respectively connected to the retaining ring 110 and the retaining ring 120.

[0025] like Figure 5 As shown, in this embodiment, the retaining ring 120 includes two semi-rings 121 and two connecting screws 122. One end of each connecting screw 122 is rotatably connected to both ends of one of the semi-rings 121, and the other end of each connecting screw 122 is threadedly connected to threaded holes on both ends of the other semi-ring 121. A retaining gap is formed between the two semi-rings 121 for abutting against the annular inclined surface M12 of the outer shell M1. The distance between the two semi-rings 121 can be adjusted by rotating the connecting screw M31, thereby clamping or releasing the outer shell M1.

[0026] like Figure 6 As shown, this embodiment also includes multiple adjusting screws 131 corresponding to the multiple pull rods 130 one-to-one. One end of each adjusting screw 131 is rotatably connected to the retaining ring 110, and the other end of each adjusting screw 131 is threadedly connected to the threaded holes opened on the multiple pull rods 130. By rotating the multiple adjusting screws 131, the distance between the retaining ring 110 and the clamp can be adjusted to adapt to reverse osmosis membrane pressure vessels M of different sizes and models.

[0027] In this embodiment, the push-pull assembly 200 can be connected to the end plate M2 for pushing and pulling the end plate M2 to achieve the installation or removal of the end plate M2. Specifically, the push-pull assembly 200 is connected to the connecting assembly 100 and has a push-pull end, which is detachably connected to the end plate M2 for pushing the end plate M2 into the interior of the housing M1, or connecting the end plate M2 and pulling the end plate M2 to the exterior of the housing M1.

[0028] In one embodiment, the push-pull assembly 200 includes a telescopic rod 210, a push-pull plate 220, and a threaded rotating rod 230. The telescopic rod 210 is fixedly connected to the connecting assembly 100 and has a telescopic end facing the opening of the outer casing M1. The push-pull plate 220 is fixedly connected to the telescopic rod 210 and has an annular abutment surface on the side away from the telescopic rod 210. One end of the threaded rotating rod 230 is connected to the telescopic end of the telescopic rod 210, and the outer wall of the other end of the threaded rotating rod 230 has an external thread that engages with the connecting thread M21 on the end plate M2. The distance from the other end of the threaded rotating rod 230 to the telescopic end is less than the distance from the annular abutment surface to the telescopic end. The detection assembly 300 is attached to the annular abutment surface and fixedly connected to the outer wall of the push-pull plate 220. The telescopic rod 210 is electrically connected to the detection assembly 300.

[0029] It is understood that the end plate M2 has a tubular structure protruding outward at its center, and the end of the tubular structure is provided with a connecting thread M2 for threaded connection with the threaded rod 230. The tubular structure can be sealed by a pipe plug M22.

[0030] The telescopic rod 210 can be an electric push rod, and the annular contact surface of the push-pull plate 220 bypasses the tubular structure and abuts against the end plate M2, thereby improving the stability of pushing the end plate M2.

[0031] In one embodiment, the threaded rod 230 is rotatably connected to the telescopic end of the telescopic rod 210.

[0032] In another embodiment, the outer wall of the threaded rod 230 near the telescopic end is formed with an external thread, which is threadedly connected to the internal thread on the telescopic end of the telescopic rod 210.

[0033] To facilitate the rotation of the threaded rod 230, in one embodiment, the push-pull assembly 200 further includes an adjusting nut 240, which is fixedly connected to the middle portion of the threaded rod 230. The adjusting nut 240 can be rotated using a wrench, thereby causing the threaded rod 230 to rotate.

[0034] In this embodiment, the detection component 300 is connected to the push-pull end and has a detection end for detecting the groove M11 on the inner wall of the housing M1. The detection end is connected to the push-pull component 200. When the detection component 300 detects the groove M11, the push-pull component 200 stops operating.

[0035] It is understandable that the detection component 300 can adopt a contact structure or a non-contact structure.

[0036] like Figure 4As shown, in one embodiment, the detection component 300 may adopt a contact structure. The detection component 300 includes an abutment block 310, a spring 320, and a switch 330. One side of the abutment block 310 is connected to the switch 330 via the spring 320. The other side of the abutment block 310 slides against the inner wall of the housing M1 or is engaged in the groove M11. When the abutment block 310 abuts against the inner wall of the housing M1, the spring 320 is in a first compressed state and the switch 330 is in a first state. When the abutment block 310 is engaged in the groove M11, the spring 320 is in a second compressed state or a natural state and the switch 330 is in a second state. The switch 330 is fixedly connected to the push-pull end and electrically connected to the push-pull assembly 200. When the switch 330 is in the first state, the push-pull assembly 200 is in the energized state. When the switch 330 is in the second state, the push-pull assembly 200 is in the de-energized state.

[0037] In another embodiment, the detection component 300 may adopt a non-contact structure. The detection component 300 includes an infrared rangefinder and a probe measurement switch mounted on the push-pull end. The infrared rangefinder is electrically connected to the push-pull component 200 via the probe measurement switch. The infrared rangefinder is used to detect the distance from it to the inner wall of the outer shell M1. When the infrared rangefinder detects the inner wall of the outer shell M1, the probe measurement switch is in a first state and the push-pull component 200 is in a powered-on state. When the infrared rangefinder detects the groove M11, the switch 330 is in a second state and the push-pull component 200 is in a powered-off state.

[0038] Of course, in other preferred embodiments, the detection component 300 can also be implemented using a structure such as a pressure sensor. The pressure sensor is connected to the push-pull plate 220 via a spring 320. The pressure sensor abuts against the inner wall of the housing M1. When the pressure sensor slides to the groove M11, the pressure sensor detects a sudden decrease in the pressure applied by the spring 320, thereby allowing manual control of the push-pull component 200 to close.

[0039] It should be noted that the structure detected by the above-mentioned detection component 300 can be stopped by manually controlling the push-pull component 200 to stop moving, or it can be controlled by the control system to stop the push-pull component 200 from moving.

[0040] The installation of end board M2 can be achieved by following the workflow below: (1) Place end plate M2 into reverse osmosis membrane pressure vessel M and manually push end plate M2 tight. After opening pull rod 130, place the tool in position along reverse osmosis membrane pressure vessel M. Ensure that retaining ring 110 fits against the end face of reverse osmosis membrane pressure vessel M; (2) Use adjusting screw 131 to adjust pull rod 130 to a suitable length so that clamping ring 120 is exactly at the annular inclined surface M12 of reverse osmosis membrane pressure vessel M. Adjust clamping ring 120 and connecting screw 122 so that the inner arc of clamping ring 120 can fit against the outer wall of reverse osmosis membrane pressure vessel M. Then fasten the buckle to ensure that the fastening strength is reasonable; (3) Turn on switch 330 to activate it, and after reaching the groove M11 on the inner wall of the reverse osmosis membrane pressure vessel M, transmit the positioning signal to the telescopic rod 210; (4) Start the telescopic rod 210. The telescopic rod 210 drives the push-pull plate 220 to gradually push the end plate M2 tight. When it reaches the installation position, the telescopic rod 210 will receive a signal from the switch 330 and stop moving. Then the switch 330 can be reset. (5) Place the baffle M3 into the groove M11 on the inner wall of the reverse osmosis membrane pressure vessel M, and then connect it to the bolt hole on the end plate M2 using the connecting screw M31. (6) Activate the telescopic rod 210 to retract it into place. Disconnect the connecting screw 122, open the pull rod 130, and remove the entire tool. Repeat the operation on another reverse osmosis membrane pressure vessel M until all end plates M2 are installed.

[0041] The end plate M2 can be disassembled by following the workflow: (1) Remove the pipe plug M22 from the end plate M2 and wait for the water in the reverse osmosis membrane pressure vessel M to drain. Remove the connecting screw M31. If the stop block M3 is not stuck, remove the stop block M3 directly. (2) Fix the tool onto the reverse osmosis membrane pressure vessel M according to the installation steps; (3) If the stop block M3 is stuck, start the telescopic rod 210 to push the end plate M2 toward the inside of the reverse osmosis membrane pressure vessel M. After checking that the stop block M3 is loose, stop the telescopic rod 210, remove the stop block M3, and then start the telescopic rod 210 to retract it; (4) Connect the threaded rod 230 to the threaded port on the end plate M2, and then start the telescopic rod 210 to retract it. When the force on the telescopic rod 210 suddenly decreases, it indicates that the end plate M2 has been removed (taking the pressure sensor as an example for the detection component 300). Remove the threaded rod 230. (5) After removing the tool from the reverse osmosis membrane pressure vessel M, repeat the operation on another reverse osmosis membrane pressure vessel M until all end plates M2 are removed.

[0042] Compared with the prior art: When installing end plate M2, the connecting assembly 100 is installed onto the outer shell M1 of the reverse osmosis membrane pressure vessel M. The push-pull end of the push-pull assembly 200 is connected to end plate M2 and is used to push end plate M2 into the interior of outer shell M1 until the detection assembly 300 detects groove M11. At this time, the installation depth of end plate M2 is just enough to expose groove M11, so as to facilitate the installation of stop block M3. Installing stop block M3 completes the installation process of end plate M2. When disassembling end plate M2, after the connecting assembly 100 is installed, the push-pull end is connected to end plate M2 and the end plate M2 is pulled to the outside of outer shell M1, thereby completing the disassembly process of end plate M2.

[0043] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the scope of protection of this utility model.

Claims

1. A tool for disassembling and assembling end plates of a reverse osmosis membrane pressure vessel, characterized in that, include: A connection assembly for detachable connection to the housing of a reverse osmosis membrane pressure vessel; A push-pull assembly, which is connected to the connecting assembly and has a push-pull end, the push-pull end being detachably connected to the end plate, for pushing the end plate into the interior of the housing, or connecting the end plate and pulling the end plate to the exterior of the housing; A detection component is connected to the push-pull end and has a detection end for detecting a groove on the inner wall of the housing. The detection end is connected to the push-pull component. When the detection component detects the groove, the push-pull component stops operating.

2. The reverse osmosis membrane pressure vessel end plate disassembly and assembly tool according to claim 1, characterized in that, The detection component includes a contact block, a spring, and a switch. One side of the contact block is connected to the switch via the spring, and the other side of the contact block slides against or is engaged in a groove with the inner wall of the housing. When the contact block abuts against the inner wall of the housing, the spring is in a first compressed state and the switch is in a first state. When the contact block is engaged in the groove, the spring is in a second compressed state or a relaxed state and the switch is in a second state. The switch is fixedly connected to the push-pull end and electrically connected to the push-pull assembly. When the switch is in the first state, the push-pull assembly is energized, and when the switch is in the second state, the push-pull assembly is de-energized.

3. The reverse osmosis membrane pressure vessel end plate disassembly and assembly tool according to claim 1, characterized in that, The detection component includes an infrared rangefinder and a probe measuring switch mounted on the push-pull end. The infrared rangefinder is electrically connected to the push-pull component via the probe measuring switch. The infrared rangefinder is used to detect the distance to the inner wall of the housing. When the infrared rangefinder detects the inner wall of the housing, the probe measuring switch is in a first state, and the push-pull component is in a powered-on state. When the infrared rangefinder detects the groove, the switch is in a second state, and the push-pull component is in a powered-off state.

4. The reverse osmosis membrane pressure vessel end plate disassembly and assembly tool according to claim 1, characterized in that, The push-pull assembly includes a telescopic rod, a push-pull plate, and a threaded rotating rod. The telescopic rod is fixedly connected to the connecting assembly and has a telescopic end with an opening facing the outer casing. The push-pull plate is fixedly connected to the telescopic rod and has an annular abutment surface on the side away from the telescopic rod. One end of the threaded rotating rod is connected to the telescopic end of the telescopic rod, and the outer wall of the other end of the threaded rotating rod has an external thread that engages with the connecting thread on the end plate. The distance from the other end of the threaded rotating rod to the telescopic end is less than the distance from the annular abutment surface to the telescopic end. The detection assembly is attached to the annular abutment surface and fixedly connected to the outer wall of the push-pull plate. The telescopic rod is electrically connected to the detection assembly.

5. The reverse osmosis membrane pressure vessel end plate disassembly and assembly tool according to claim 4, characterized in that, The threaded rotating rod is rotatably connected to the telescopic end of the telescopic rod.

6. The reverse osmosis membrane pressure vessel end plate disassembly and assembly tool according to claim 4, characterized in that, The outer wall of the threaded rod near the telescopic end has an external thread, which is threaded to the internal thread on the telescopic end of the telescopic rod.

7. The reverse osmosis membrane pressure vessel end plate disassembly and assembly tool according to claim 4, characterized in that, The push-pull assembly also includes an adjusting nut, which is fixedly connected to the middle part of the threaded rod.

8. The reverse osmosis membrane pressure vessel end plate disassembly and assembly tool according to claim 1, characterized in that, The connecting assembly includes a retaining ring, a retaining ring, and multiple pull rods. One side of the retaining ring has an annular groove for engaging with the outer edge of the opening end of the housing. The retaining ring is detachably connected to the outer wall of the housing. Both ends of the multiple pull rods are respectively connected to the retaining ring and the retaining ring.

9. The reverse osmosis membrane pressure vessel end plate disassembly and assembly tool according to claim 8, characterized in that, The retaining ring includes two semi-rings and two connecting screws. One end of each connecting screw is rotatably connected to both ends of one of the semi-rings, and the other end of each connecting screw is threadedly connected to threaded holes on both ends of the other semi-ring. A retaining gap is formed between the two semi-rings for abutting against the annular inclined surface of the outer shell.

10. The reverse osmosis membrane pressure vessel end plate disassembly and assembly tool according to claim 8, characterized in that, It also includes a plurality of adjusting screws corresponding one-to-one with the plurality of pull rods, one end of each of the plurality of adjusting screws being rotatably connected to the retaining ring, and the other end of each of the plurality of adjusting screws being threadedly connected to the threaded holes opened on the plurality of pull rods respectively.

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